摘要
以二倍体菘蓝为材料,研究二氧化硫对菘蓝根尖生长及细胞分裂的影响,结果表明:低浓度二氧化硫对菘蓝根尖生长及细胞分裂没有影响;高浓度的(1.5~2.5mmol/L)二氧化硫能够抑制菘蓝根尖的生长,同时使细胞有丝分裂指数、发芽率下降,并诱发细胞分裂异常,且呈明显的时间效应和剂量效应。
Effect of sulfur dioxide on the cell division and growth of isatis indigotica fort root tip was studied. Using explant of diploid isatis indigotica fort.The results showed that the lower concentration of sulfur dioxide solution had no effect on the isatis indigotica fort root tip cell division and growth, but the growth of isatis indigotica fort root tip slowed down when they incubated with higher concentrations of sulfur dioxide,the sulfur dioxide decreased the mitotic index significantly and germination rate,as well as induced abnormal division.
出处
《中国西部科技》
2010年第1期36-38,共3页
Science and Technology of West China
关键词
二氧化硫
菘蓝根尖
有丝分裂指数
发芽率
Sulfur dioxide
Isatis indigoticafort root tip
Mitotic index
Germination rate